Forward-reverse valve for elevating scraper drive

Details Forward-reverse valve for elevating scraper drive Forward-reverse valve for elevating scraper drive

1974-01-07

1976-07-06

Cohen, Irwin C.

Motors: expansible chamber type

With motive fluid valve

Contracting chamber exhaust valve controlled by expanding...

91441, 1375962, F15B 1108, F15B 13042

Patent

active

039675327

ABSTRACT:
There is disclosed a valve assembly in combination with a hydraulic circuit to operate a motor in the circuit in a forward and reverse direction. The valve assembly includes check valve means for regulating fluid flow to the motor, pilot valve means for operating the check valve means responsive to pressures within the circuit, and relief valve means for relieving overpressure within the circuit. The combination is constructed and arranged so that the valve assembly substantially prevents cavitation of the motor, and is also operative to and isolate the motor from external loading.

REFERENCES:
patent: 2328980 (1943-09-01), Herman et al.
patent: 2517164 (1950-08-01), Arps
patent: 2618121 (1952-11-01), Tucker
patent: 3184920 (1965-05-01), Lohbauer et al.
patent: 3213874 (1965-10-01), Schmiel et al.
patent: 3349671 (1967-10-01), Hoffman
patent: 3735670 (1973-05-01), Smithson
patent: 3814413 (1974-06-01), Bopp

Affiliated with

Also associated with

Rating

Forward-reverse valve for elevating scraper drive does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Forward-reverse valve for elevating scraper drive, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Forward-reverse valve for elevating scraper drive will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1527773